[386] Klot, “Ueber den Nützen und Gebrauch der alten geschnittenen Steine,” Altenburg, 1768, p. 57.
[387] Erasmi Stellæ, “Interpretamentum Gemmarum,” 3d ed., Erfurti et Lipsiæ, 1736, p. 27.
[388] Agricolæ, “De natura fossilium,” lib. vi, Basileæ, 1546, p. 289.
[389] Gesner, “De figuris lapidum,” Tiguri, 1565, ff. 112v, 113r.
[390] “Les six voyages de Jean Baptiste Tavernier,” La Haye, 1718, vol. i, p. 48; Voyages en Perse, liv. i, chap. iv.
[391] José Ignacio Miró, “Estudio de las piedras preciosas,” Madrid, 1870, pp. 135, 136.
[392] Lassels, “The Voyage of Italy,” Paris, 1670, Pt. II, p. 344.
[393] Lassels, l.c., p. 339.
[394] Scotto, “Itinerario d’Italia,” Roma, 1747, p. 314.
[395] José Ignacio Miró, “Estudio de las piedras preciosas,” Madrid, 1870, pp. 136, 137, 229.